下图是以gdp为因变量,基尼系数、能源消费量、就业人数、固定资产投资为解释变量的回归分析,现在已知 gini=0.467 eg=449000 ep=77640 fi=641238.4,如何预测gdp的值和计算预测值误差
reg gdp gini eg ep fi
Source | SS df MS Number of obs = 36
-------------+---------------------------------- F(4, 31) = 3304.08
Model | 1.7399e+12 4 4.3498e+11 Prob > F = 0.0000
Residual | 4.0812e+09 31 131650733 R-squared = 0.9977
-------------+---------------------------------- Adj R-squared = 0.9974
Total | 1.7440e+12 35 4.9829e+10 Root MSE = 11474
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gdp | Coef. Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
gini | 53383.65 71162.82 0.75 0.459 -91753.88 198521.2
eg | .4891177 .0701619 6.97 0.000 .3460216 .6322138
ep | .4223782 .4901909 0.86 0.395 -.5773727 1.422129
fi | .8471802 .0372432 22.75 0.000 .7712221 .9231382
_cons | -67620.85 16464.72 -4.11 0.000 -101200.9 -34040.84
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